#ifndef __WIRING_CONSTANTS_H__
#define __WIRING_CONSTANTS_H__

#include <stdbool.h>
#include <stdint.h>
#include <core_gcc.h>

#ifdef __cplusplus
#include <algorithm>
using std::max;
using std::min;
#else // C
#include <stdlib.h>
#ifndef abs
#define abs(x) ((x) > 0 ? (x) : -(x))
#endif // abs

#ifndef min
#define min(a, b) ((a) < (b) ? (a) : (b))
#endif // min

#ifndef max
#define max(a, b) ((a) > (b) ? (a) : (b))
#endif // max

#endif // __cplusplus

/* Official Arduino */
#define INPUT           0x0
#define OUTPUT          0x1
#define INPUT_PULLUP    0x2
/* STM32 extension */
#define INPUT_FLOATING INPUT
#define INPUT_PULLDOWN  0x3
#define INPUT_ANALOG    0x4
#define OUTPUT_OPEN_DRAIN 0x5

#define OUTPUT_AF       0x6
#define OUTPUT_AF_OPEN_DRAIN 0x7

#define PI              3.1415926535897932384626433832795
#define HALF_PI         1.5707963267948966192313216916398
#define TWO_PI          6.283185307179586476925286766559
#define DEG_TO_RAD      0.017453292519943295769236907684886
#define RAD_TO_DEG      57.295779513082320876798154814105
#define EULER           2.718281828459045235360287471352

#define SERIAL          0x0
#define DISPLAY         0x1


#define interrupts()    __enable_irq()
#define noInterrupts()  __disable_irq()

enum BitOrder
{
    LSBFIRST = 0,
    MSBFIRST = 1
};

#define LOW             0x0
#define HIGH            0x1
#define CHANGE          0x2
#define FALLING         0x3
#define RISING          0x4

#define DEFAULT         1
#define EXTERNAL        0

#define constrain(amt,low,high) ((amt)<(low)?(low):((amt)>(high)?(high):(amt)))

#define radians(deg) ((deg)*DEG_TO_RAD)
#define degrees(rad) ((rad)*RAD_TO_DEG)
#define sq(x) ((x)*(x))

#define lowByte(w) ((uint8_t) ((w) & 0xff))
#define highByte(w) ((uint8_t) ((w) >> 8))

#define bitRead(value, bit) (((value) >> (bit)) & 0x01)
#define bitSet(value, bit) ((value) |= (1UL << (bit)))
#define bitClear(value, bit) ((value) &= ~(1UL << (bit)))
#define bitWrite(value, bit, bitvalue) (bitvalue ? bitSet(value, bit) : bitClear(value, bit))

#define bit(b) (1UL << (b))
//macro added for compatibility
#ifndef _BV
  #define _BV(bit) (1 << (bit))
#endif
#ifndef cbi
  #define cbi(reg, bitmask) *reg &= ~bitmask
#endif
#ifndef sbi
  #define sbi(reg, bitmask) *reg |= bitmask
#endif


typedef unsigned int word;
typedef bool boolean __attribute__((deprecated));

typedef uint8_t byte ;

#endif // __WIRING_CONSTANTS_H__